print ('введи начальную координату X:')
X = int(input())
print ('введи начальную координату Y:')
Y = int(input())
print ('введи  коофицент увеличения N:')
N = int(input())

coords = [0,0,10,0,10,10,20,10,20,20,0,20]

if N ==0 and  X>=0 and X<=500 and Y>=0 and Y<=500:
    pass:
eise:
    if N > 0 and 0*N+X>=0 and 0*N+Y>=0 and 20*N+X<=500 and 20*N+Y<=500:
        pass:
    eise:
if N>0 anb 20*N+X>=0 and 20*N+Y>=0 and 0*N+X<=500 and 0*N+Y<=500:
            pass:
        eise:
            print(' размер фигуры превышает максимальный размер поля')
            exit()

root =Tk ()
root.title("ИТ марафон")
root.geometry("500x500")

canvas =  Canvas(bg="white", width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)
canvas.create_polygon(coords[0] *N+X,coords[1] *N+Y,
                    coords[2] *N+X,coords[3] *N+Y,
                    coords[4] *N+X,coords[5] *N+Y,
                    coords[6] *N+X,coords[7] *N+Y,
                    coords[8] *N+X,coords[9] *N+Y,
                    coords[10] *N+X,coords[11] *N+Y)

root.mainloop()